Contour plot question: can I create more than one contour value line?

Hello, In the script:

x = -3:0.125:3;

y = -3:0.125:3;

[X,Y] = meshgrid(x,y);

Z = peaks(X,Y);

v = [1,1];

figure

contour(X,Y,Z,v),

is it possible to add more values contour lines (for example v = [2,2]) in the same figure? Thanks in advance for your reply.